Method of assembling radiator relief valves



Dec. 2 7, 1927.

E. O. H. POEPPEL METHOD 0F AssEMBLING RADIATOR RELIEF VALVES Filed Nov. l1. 1926 Patented Dec. 27, 1927.

UNITED STATES EMIL 0. H. POEPEL, OF CHICAGO, ILLINOIS.

METHOD OFl ASSEMBLI-NGRADIATOR RELIEF VALVES.

Application tiled November l1, 1926. Serial No. 147,719.

which the housing and base members are assembled.

l-Qeretoi'ore in the manufacture oit this form or relief valve, it `has been customary to malte the article with two principal parts to the body, that is, a cup-shaped base inemj ber having a threaded nipple secured thereto t'or attaching to'a radiator, andan elongated deine-shaped tubular housing suitably mounted on the base member. The deine-shaped housingl member is provided with an outlet having a valve seat, and with a valve actuating mechanism supported on the base member. This torni oi structure necessitated an adjustment ot the valve clearance after the b-ase andwhousing member had been assembled together, due to variations in the length ot the housing body and in the positioning` ot the housing` member on to the base member.

An illustrative embodiment of this invention is shown in the accompanying drawings, in which:

Fig. l is a vertical sectional elevation of the dome-shaped housing body with the dust cap screwed onto the tubular neck.

Fig. 2 is a vertical elevation partly in section ot the thermostatic valvebody and needle valve carried thereby.

Fig. 3 is au elevation ot the supporting spider which retains the thermostatic valve in the housing body.

Fig. l is an elevation partly in section ot the base member, which carries the housing body and which is adapted to be secured to a. radiator.

Fig, 5 is a view in perspective of the spacing member used in assen'ibling the valve parts.

Fig. Gis a planview of the spider shown in Fig'. 3. i l Fig. 7 is a vertical elevation partly in section of the housingbody, with the ther mostat-ic valve and supportingspider assembled therein with the spacing` member in position between the spider and the diaphragin ot' the valve body.

Fig. 8 is a vertical elevation, partly in section, oit the completely assembled relief valve in its cold position, showing the needle valve spaced away from its valve seat.

Fig.' 9 is a vertical elevation, partly in section, oii'the same with the valve in hot position, slimying the needle valve closed on its valve seat.

In the construction shown in the drawings a thin sheet metal cup-shaped base member l interiorly threaded attits rim 2- is provided `with a short pipenipple 3 swedged or otherwise suitably secured thereto, the nipple 3 being` exteriorly threaded at its outer end flor the purpose et vattaching to a radiator.

A vertically disposed elongated tubular housing member 4 is exteriorly threaded at its lower end 5 so as to be mounted on the base member l by being screwed thereinto.`

The upper end of housing,` 4 is dome-shaped and carries a vertical projecting externally threaded tubular neck 6 swedged thereto, providing an outlet 'for air and steam. The upper portion 7 ot thetubular necks bore is diainetrically less than the lower portion .ormimr a valve seat 8.

An interiorly threaded dust cap 9 is screwed to the neck 6 and is providedwith ports l0 and ll adjacentl the outer edge of the top. These portions l() and l1 do not register with the outlet 'T in the neck and any dust that may enter the ports is thus deflected from directly entering the opening- 7. The walls of the cap 9 are of greater length than the neck 6 so that when the cap is screwed down on to the neclc,l the top ot the cap is spaced away from the top ot the neck forming a chan'ihcr 19. as shown in Fig. l.

The opening is controlled by a needle valve 13 for coacting with the valve seat 8. The valve 13 is mounted coaxially on the dome-shaped end lll of an inverted cupshaped valve body l5, the lower end ofV in normal position, it is bowed inwardly toward the body l5, that is, concave, and when heated is adapted to bow outwardly, that is, be convex with respect to the valve body. The valvebody l5 is ot such diamllO eter that it is readily slidably andmovable Withinthe housing 4 and is supported and retained therein by a spider or supporting bridge 17, soldered or` otherwise `sibiitably secured to the interior Walls of the housing member 4- TheeteePoitenaf the ,Snider 17 is bowed toward the Valve body and bears against the diaphragm 16. The `'spider 17 is secured to the housing in suoli position that the needle valve 13 will be spaced away` from the "valve seat 8 adistanee substantially equal to.l theydistancetiaveled by the centeriportion ofthe Hdiaphragm 1G when said;y diaphragm movfesbfrom a concave to a convex curvature due to expansion oi' the gas inthe `valvebody 15.` i i This proper `spacing of the valve is se* cured by the useoij 1an L-shaped spacer `18, the short leg 19 offwhich isifplaced between the spider ln and the diaphragm lfdurihg the 4assembly of the unit, with the diaphragm 16 inconcaife or cold position and with the needle vialvewl` resting on its `seat S. After this spider 17 has been soldered in place, spacer 18 is removed from its position between thespider and diaphragm, thusallowing the valvebody 15 carrying the needle valve 13 to be spaced away from its valve `seat/adistance equal to ,thethickness of the leglf). The opeijatingjpart and themanner of `asseinbling "them nialies'the spacifiig of the needle iz'ilvefrom 4its seat a mattei" entirely independent ofthe depth to `Which the housing/4 is'slciieyved infits basel. l

In the `opeiation of the ``clevice,the yalye in its normal cold positionis spaced from `will pass ont through the outlet opening 1W its seat and when the steammilitheradiator 1s turned on, the cold air 1n the radiator H i and ports l() and lint cap 9. Then the `air has "allbeen `forced out oi the radiator ous details of the construction shown may f be altered or omitted Without departing i'roin the spirit ol this invention delined by the following claim:

lThe method oi assemblingaradiator-ielief Valve `which comprises the placing of "a valve and a valve actuatingnieans in allionsing body having a valve seat With theralve closed on said seat, inserting l a supporting spiderin said housing with a spfleinginemn ber between said spider andsaid valve *aetnating means, securing said spiderin sueha position, and then removing said .siiaciiig member.

Signed at Chicago this 5th day of Novelliber, 1926.

EMIL o; H. Polieren 

